V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

SDL
       Security Development Lifecycle (MS)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

SDL
       Simple Directmedia Layer


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

SDL
       Specification and Description Language (CCITT)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

SDL
       System Design Language


The Free On-line Dictionary of Computing (30 December 2018):

SDL

   Specification and Design Language.

   Defined by the ITU-T (recommendation Z100) to provide a tool
   for unambiguous specification and description of the behaviour
   of telecommunications systems.  The area of application also
   includes process control and real-time applications.  SDL
   provides a Graphic Representation (SDL/GR) and a textual
   Phrase Representation (SDL/PR), which are equivalent
   representations of the same semantics.  A system is specified
   as a set of interconnected abstract machines which are
   extensions of the Finite State Machine (FSM).

   1. System Software Development Language.  System software for
   the B1700.  "System Software Development Language Reference
   Manual", 1081346, Burroughs Corp (Dec 1974).

   2. Specification and Description Language.  ITU-T.
   Specification language with both graphical and character-based
   syntaxes for defining interacting extended finite state
   machines.  Used to specify discrete interactive systems such
   as industrial process control, traffic control, and
   telecommunication systems.  Proc Plenary Assembly, Melbourne
   14-1988-11-25, Fasc X.1, CCITT.  "Telecommunications Systems
   Engineering Using SDL", R. Saracco et al, N-H 1989.  Available
   from Verilog, MD.  (See XDL).

   3. Shared Dataspace Language.  "A Shared Dataspace Language
   Supporting Large-Scale Concurrency", G. Roman et al, Proc 8th
   Intl Conf Distrib Comp Sys, IEEE 1988, pp.265-272.

   4. Structure Definition Language.  Used internally by DEC to
   define and generate the symbols used for VAX/VMS internal data
   structures in various languages.

   5. System Description Language.  language used by the Eiffel/S
   implementation of Eiffel to assemble clusters into a system.
   (see Lace).